drm/amd/display: Add some missing code for dcn42

[why & how]
Some DCN4.2 related code is missing from upstream

Fixes: e56e3cff2a ("drm/amd/display: Sync dcn42 with DC 3.2.373")
Acked-by: ChiaHsuan Chung <ChiaHsuan.Chung@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: James Lin <pinglei.lin@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
James Lin 2026-05-07 08:01:51 +08:00 • committed by Alex Deucher
commit ed0bb5c4bd
4 changed files with 16 additions and 8 deletions